Yaskawa Large Capacity Sigma II Series - Manual (Page 92)

4 Parameter Settings and Functions
4.2.2 Position Reference
4-16
Set the voltage range for the speed reference input V-REF at CN1-5 according to host con-
troller and external circuit output form.
The factory setting is adjusted so that a 6-V input is equivalent to the rated motor speed of
all applicable servomotors.
The maximum allowable voltage to the speed reference input (between CN1-5 and 6) is ± 12 VDC.
Using the /P-CON Signal
The /P-CON input signal switches the Speed Control Mode from PI (proportional-integral)
to P (proportional) control in order to reduce servomotor rotation and minute vibrations due
to speed reference input drift. The use of this signal will vary with applications because ser-
vomotor rigidity (holding force) drops when the servomotor is stopped.
4.2.2 Position Reference
The reference pulse, reference code, and clear inputs are used for the position reference.
Since this signal can be used in different ways; set the optimum reference input for the sys-
tem created.
„ Reference by Pulse Input
Positioning is controlled by inputting a move reference pulse.
→ Input /P-CON CN1-41 Proportional Control Reference Speed Control,
Position Control
Reference
speed (min )
Reference
voltage (V)
Set this slope.
-1
INFO
Reference
code input
Clear input
Reference
pulse input
SERVOPACK
Photocoupler
: represents twisted-pair wires.
CN1-11
PULS
/PULS
CN1-7
CN1-8
CN1-15
CN1-14
150
CLR
/CLR
SIGN
/SIGN CN1-12